58 citations · 247 across the 17 of their papers we have counts for
17 papers
Nanoparticle Arrays for Efficient Organic Light-Emitting Diode Emission Management
Aron J. J. Dahlberg, Matas Gužauskas, Malek Mahmoudi +16
OLEDs are increasingly applied in illumination and displays because they offer excellent color quality, are mechanically flexible, and are self-emissive. However, their usage is li…
A fully solution-processed organic microcavity laser in the strong light-matter coupling regime
Hassan A. Qureshi, Henri Lyyra, Akseli Korkeamäki +3
Solid-state semiconductor lasers underpin technologies from telecommunications and data storage to sensing, medical diagnostics, and emerging quantum communication. Polaritons-hybr…
Characterization of a quantum bus between two driven qubits
Alberto Hijano, Henri Lyyra, Juha T. Muhonen +1
We investigate the use of driven qubits coupled to a harmonic oscillator to implement a -gate. By dressing the qubits through an external driving field, the…
Optomechanical quantum bus for donor spins in silicon
Henri Lyyra, Cliona Shakespeare, Simeoni Ahopelto +6
Silicon is the foundation of current information technology, and a promising platform for future quantum information technology as silicon-based qubits exhibit some of the longest…
Single-laser feedback cooling of optomechanical resonators
Arvind Shankar Kumar, Joonas Nätkinniemi, Henri Lyyra +1
Measurement-based control has emerged as an important technique to prepare mechanical resonators in pure quantum states for applications in quantum information processing and quant…
The effects of ion implantation damage to photonic crystal optomechanical resonators in silicon
Cliona Shakespeare, Teemu Loippo, Henri Lyyra +1
Optomechanical resonators were fabricated on a silicon-on-insulator (SOI) substrate that had been implanted with phosphorus donors. The resonators' mechanical and optical propertie…
Experimental Snapshot Verification of non-Markovianity with Unknown System-Probe Coupling
Henri Lyyra, Olli Siltanen, Jyrki Piilo +2
We apply the recently proposed quantum probing protocols with an unknown system-probe coupling to probe the convex coefficients in mixtures of commuting states. By using two refere…
Experimental realization of high-fidelity teleportation via non-Markovian open quantum system
Zhao-Di Liu, Yong-Nan Sun, Bi-Heng Liu +5
Open quantum systems and study of decoherence are important for our fundamental understanding of quantum physical phenomena. For practical purposes, there exists a large number of…
Experimental Quantum Probing Measurements With No Knowledge on the System-Probe Interaction
Henri Lyyra, Olli Siltanen, Jyrki Piilo +2
In any natural science, measurements are the essential link between theory and observable reality. Is it possible to obtain accurate and relevant information via measurement whose…
There is no general connection between the quantum speed limit and non-Markovianity
Jose Teittinen, Henri Lyyra, Sabrina Maniscalco
The quantum speed limit sets a bound on the minimum time required for a quantum system to evolve between two states. For open quantum systems this quantity depends on the dynamical…
Obtaining conclusive information from incomplete experimental quantum tomography
Henri Lyyra, Tom Kuusela, Teiko Heinosaari
We demonstrate that incomplete quantum tomography can give conclusive information in experimental realizations. We divide the state space into a union of multiple disjoint subsets…
Revealing memory effects in phase-covariant quantum master equations
Jose Teittinen, Henri Lyyra, Boris Sokolov +1
We study and compare the sensitivity of multiple non-Markovianity indicators for a qubit subjected to general phase-covariant noise. For each of the indicators, we derive analytica…
Experimental implementation of fully controlled dephasing dynamics and synthetic spectral densities
Zhao-Di Liu, Henri Lyyra, Yong-Nan Sun +5
Engineering, controlling, and simulating quantum dynamics is a strenuous task. However, these techniques are crucial to develop quantum technologies, preserve quantum properties, a…
Symmetry in the open-system dynamics of quantum correlations
Henri Lyyra, Göktuğ Karpat, Chuan-Feng Li +3
We study the symmetry properties in the dynamics of quantum correlations for two-qubit systems in one-sided noisy channels, with respect to a switch in the location of noise from o…
Fidelity of dynamical maps
Mikko Tukiainen, Henri Lyyra, Gniewomir Sarbicki +1
We introduce the concept of fidelity for dynamical maps in an open quantum system scenario. We derive an inequality linking this quantity to the distinguishability of the inducing…
Complete positivity, finite temperature effects, and additivity of noise for time-local qubit dynamics
Juho Lankinen, Henri Lyyra, Boris Sokolov +3
We present a general model of qubit dynamics which entails pure dephasing and dissipative time-local master equations. This allows us to describe the combined effect of thermalisat…
Non-Markovian dynamics in two-qubit dephasing channels with an application to superdense coding
Antti Karlsson, Henri Lyyra, Elsi-Mari Laine +2
We study the performance of two measures of non-Markovianity in detecting memory effects in two-qubit dephasing channels. By combining independent Markovian and non-Markovian noise…